10 Best Weatherproof Padlocks 2026 in the United States

The Master Lock Black Magnum Keyed-Alike Padlocks come as a 3-pack designed for outdoor use, making them a solid choice for securing gates, fences, or other exposed areas. Their laminated steel lock bodies are protected by a tough thermoplastic cover, which helps them stand up well against rain, snow, and other harsh weather conditions. The shackle is octagonal and hardened, providing strong resistance to cutting or sawing attempts, which is important for deterring thieves. The lock uses a 4-pin cylinder with dual ball bearing locking, offering reliable security beyond basic models.

The keyed-alike feature means all three locks open with the same pair of keys, making it convenient if you need to manage multiple locks without juggling different keys. Size-wise, the lock body is approximately 1-7/8 inches wide with a 1-1/2 inch shackle, which is a versatile size for many outdoor applications. While the plastic coating provides protection, it may not be as durable over time as all-metal alternatives under extremely heavy use. Additionally, being a keyed lock means that losing the keys could pose a challenge, as it does not offer combination or smart lock options.

These padlocks offer a balance of weather resistance, solid security, and ease of use, making them a practical choice for homeowners or small businesses needing dependable outdoor locking solutions.

The Master Lock Gold Outdoor Combination Lock is designed for outdoor use, making it a strong choice if you need a weatherproof padlock for gates, sheds, or storage. It has a zinc alloy body with a reinforced bumper and a tough boron-carbide shackle, which is much harder than typical steel, offering solid protection against cutting or prying. The lock is coated and sealed to resist harsh weather, which helps it last longer outside. You can set your own four-digit combination without needing extra tools, and the one-directional dial makes it easier to use in low-light conditions.

With a shackle diameter of 3/8 inch and an extended length, it fits various lock-up needs. The pack includes two locks, which adds value if you have multiple doors or gates to secure. On the downside, the lock is a bit bulky at nearly 4 inches tall and close to 2 pounds, so it might be heavier than some other options if you need something smaller or lighter. Also, while the combination reset is convenient, some users might find remembering or managing combinations tricky if they prefer key locks.

This product represents a practical and reliable choice for anyone looking for a weather-resistant, heavy-duty combination lock that balances security and ease of use.

The Master Lock Magnum Heavy Duty Outdoor Padlock with Key, model M115XDLF, is designed for robust outdoor use. It features a laminated steel body with a weather-resistant cover, enhancing its durability against harsh weather. The shackle is made from Tough-Cut octagonal boron-carbide, which is 50% harder than typical hardened steel, offering a high level of cut resistance—ideal for securing fences, gates, sheds, and more.

The 4-pin cylinder and dual ball bearing locking mechanism increase protection against picking and prying attempts, while a covered keyway and shackle add extra weather protection. The padlock's dimensions are compact with a 1-7/8 inch wide body and a 5/16 inch diameter shackle, providing flexibility for various applications. It includes one lock and two keys for convenience.

The primary material listed as plastic might be confusing, as the core body is steel with plastic covering for weather resistance. Weighing only 3.2 ounces, it is lightweight, which may or may not be a concern depending on the user's preference. It ranks #2 in Keyed Padlocks, highlighting its popularity and reliability as an outdoor locking solution. It’s important to measure your door's backset, cross bore, and thickness to ensure proper fitment.